We had one of the first 8680's, that got traded for an 8690 which got traded for an 8737. They seem to have got better as time passes. There was never any issue of performance, the first one certainly had some reliability issues, which credit to Agco they seemed keen to resolve and not leave us stranded.

I don't drive it, but it seems to go out in the morning and come home at night with just scheduled services.